I bought one of these engines and a HobbyKing 40A ESC to go with it. I got it today and the spec sheet says it only makes 543 watts and it needs a 70A speed control. The specs above says it makes 665 watts and only 38A max current. So what info do I go by? Will this 40A ESC work with this motor? Please Help!
a 40A ESC should work fine, but does not allow any 'headroom', so probably a 50A or greater would be safer. The calculation for 665W must be assuming a 4S pack with perfectly charged cells at 4.2V each, running almost 40A through the motor. More realistically, a battery under load would only provide 3.7V/cell, so a reasonable figure for 4S power would be 4cells x 3.7volts * 39amps = 562watts. Hope this helps.
Fairly new to electrics. I have a brushed/geared GP Super Sportster and thought this might be a good upgrade. What would be a good ESC and battery combination or would you recommend something totally different.
HI everyone, Does someone has the wing X8 (2 meter), Do you Guys think that this motor is recommended for that wing carrying aprox. 2,0 Kg of FPV equipment ? (total flight weight = 2 Kg)
PLease I will really apreciate your suggestions
waiting for answers..regards.
Oh John I am thing too big. The Apprentice 15e is Motor Size:15-size brushless outrunner with a 30 AMP esc. So we want some like that. Lots here. Nice plane. I would (If you want a bit more power) 2836 (PRODUCT ID: SK3-2836-1500 ).
Paul this is hard to say. The norm is that it is tube covering the windings. The ESC uses AWG wire. The motor is rated at 40 AMPs, so I am thinking you will need AWG coated wire of 8 or 10 at a push. The smaller the number the thicker the wire.
.New to electric stuff! I understand motor rating in Kv and and watts. The problem I am having is with 2 different set-ups. One with a 35mm 1000kv and one with a 42mm 530 kv. They both have quality 50 amp ESC's and run lipos at 4 or 5 cells. If I don't set the timing to the most advanced the motors will squeal and slow way down when throttled hard. With the timing advanced, they are way better, but will still do it if throttled aggressively at low rpms. Is this a normal electric thing. I am not running big props or over loading. Great top-end rpm and no heat from motors. Is there any thing I can do to eliminate this. I have set the load on the ESC to heavy, helped but not eliminated.
Brian I see why no one has answered this question. We could write a book on what is happening here. I have had both smooth running motors and squealers. It see the lower the average RPM the less smooth. How about we take this QUESTION to the open forum. Start a topic there. The guys are very helpful.
remove c clip and set screw. add a few drops of oil in the hole where the set screw was. best to use a vise or drill press to push shaft. as a last resort, you can use a barbell or heavy sledge hammer and GENTLY tap the shaft. utube has plenty of vids. search for "Converting your Turnigy Motor to a Pusher Mount"
take a block of wood.. drill a hole deep enough to take the shaft as it comes trough.. place in large vice and slowly tighten.. the shafts are very tight but vice pressure moves them okay.. quite an easy job when you do it right.. :)
i recommend the g10 1200kv. stupid power and a direct bolt in. with a 11x5.5 prop, it will have more than 2:1 thrust to weight or you can try a 10x8 for super speed. yes, i know g10 is a lower number than g15 but the 1200kv g10 is more powerful
Received this today with the 45A ESC I also ordered. The Spec sheet that came with it says ESC 70A!! Will my 45AESC be OK?
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If you use a 4s battery pack you will need 70-80A ESC. I have one on my Diamond Duster and going from a 3s to a 4s is about 30MPH increase in speed. I have 4 of these motors and use a 40A ESC with 3s, 30C lipo.
HEATEDHAT, Interesting. I used a Watt's up meter to measure the current draw. I will agree it is more than a 40A ESC will handle and I suppose the burst current for a 55A ESC may be 60 - 70A for a short period without burning up. I went with the higher amped ESC just to be safe. I like flying at full throttle. That would be MAX amps on any motor. :-)
Understood larry. Granted I mounted the esc outside the fuse and ran full thro for 13 plus min. But mounting and esc outside may have been what made the diff.... the pt20 was put out by great planes and meant for a .25 glow. outside was the only reasonable place for it. i believe inside would have caused a heat problem. But as it was i was only asking 42 amps at full thro... using turnigy's quant telemetry.
Remember when reading this people. I was using a quality ESC. Not some cheap ESC like PNP Top Fire. 55amp is fine and will get the most of your amp hours if you want to spend money on a descent esc then feel free to use 4s
HMMM didnt this motor have a 4mm shaft???? now it says 5mm. i distinctly remember having to order 4mm prop adapters for this since it had the buttmounted adapters only. but now i see in the pictures a shaft adapter. I need to know the shaft diameter as i want to reorder these again.
With the Turnigy NTM propdrive 35 series accessory pack fit this motor? I have the old version of this motor, TR35-42D-1000, and want to know what accessory packs will fit this motor because I have 4 old style motors with bent shafts that still work but need an accessory pack(s) to get the motors working again. Any help will be appreciated. Thanks and happy flying!
All of the HK brushless motors list the characteristics of the motor on the page (such as power, kv, maximum voltage, etc). If you describe the plane you are building perhaps we could better help you pick out a motor for it.
What the ESC and Lipo? But yes you can use with a 25c lipo and 40 Esc, in the fact you can go up to 12x6 prop with this configuration.
Use this simulation to help you: ***********ecalc.ch/motorcalc_e.htm
Yes, but what kind of plane? If you want 3D you'll have to go 4S and a 11x5 for good hover, 9x7 for speed, 10x6 for all around torque and speed. Please make sure to test the Amp & Watt it pulls, and the temp. If you don't have one get a Watt meter, best tool for electrics. Too many props, LIPOs, ESCs etc. each a little different.
They have a series of motors designed to directly replace glow engines. Sounds like you might have a .32-.45 now, so just search in the brushless outrunner motor section for the Turnigy G32 to G40 etc. In the specs for the motor they will list the recommended ESC and LIPO. Good luck!
Ok, I am totally confused.
The back of the motor is the part that doesnt move. The front of the motor (the bell) with the shaft is the part that spins. So the back of the motor has to be the part mounted. But I need it to be mounted to the back of the firewall.
Can you explain a little more. confused!
I'm rather confused too but I think you need the cross shaped motor mount. Screw it on the motor in the correct position and then screw or bolt the motor mount on the firewall. Another mount for this motor could be a stick mount (10mm) If your motor came with the off-set stick mount you can either cut a hole in the firewall to take the stick or buy the firewall part of the stick mount and screw it to the firewall and then put your motor on the opposite end of the stick. You may have to shorten t
Jason. You can easy convert the motor to fit your plane. What you do is. 1 losen the 2 small screws on the fron of the bell. 2 losen the E-clip. 3 Pull the motor apart. 4 knock the axel from the bell carfully. 5 push the axel from other side and mount it all together.
you need a inrunner jason
you can fine one with the same sepecs in the inrunners section
1 thumbs up!
Just received this motor and I have ordered these in the past but this one was different than the others. The shaft is different and the magnets are not as strong as the earlier ones. I tested this motor and compaired to the earlier ones and found the following data:
3S, 30C, 10x5 prop, 52oz thrust, 319W/27A, 3S, 30C,10x7 prop, 57oz thrust, 364W/31A, 3S, 30C, 10x9 prop, 45oz, 465W/40A, 3S, 30C, 11x6 prop, 65oz thrust, 353W/30A. this motor performs slightly better than the older version.with same setup for voltage and props. Good replacement for .15 glow engine.
Very good engine. I use it in the "Hobbyking Yak 55 3D 1096mm EPP (ARF)". Turnigy plush 40A, ZIPPY 1800mAh 3S1P 40C Flightmax APC style propeler 13x4; 42A APC style propeler 11x5,5; 37A Motor after a flight of propeller 13x4 slightly warm, about 35*C
Bonjour, Ce moteur est trÃ¨s puissant Avec une TGS 10x6F Precision Folding propeller plus lipo 4S 3600 mon planeur mon Ã la verticale
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Perfect motor for Multiplex Acromaster. 5mm shaft is a big plus (crash wise). Good vertical climbs. My setup: 40A ESC, 12x6 propeller, 2200mAh lipols 20C, HXT900 on ailerons, Turnigy MG90S on rudder and elevator. Recommended buy. I will experiment with 4S lipols and other propellers to get higher speed but on 50 or 60A ESC.